Colorado Gem & Mineral Co. - Rocks for the Rest of Us

Links

 

Colorado Gem and Mineral Co

 

Source for a large variety of high quality Gems and Crystallized Minerals from around the world. Jack is a contributing gemologist and geologist, great prices and selection. Amethyst is our specialty


Colored Gemstones

 

Renowned German firm W. Constantin Wild's educational site; a "curiosities" section offers information and a data bank on colored gemstones


Mineralogical Society of America

 

The home page of the Mineralogical Society of America. Visitors can get information on MSA publications, grant and award programs, upcoming meetings, and classes, educational programs, and mineralogical resources.


Site for Metalworking

 

www.artmetal.com - This site is intended to be an archive for information on working artistically with metal


Figure US Postage

 

calculate postage on the US Post Office site


Adularescence in Quartz and Amethyst

 

In 1987 The Gemological Institute of America named this optical phenomenon the “Lowell effect” adularescence in amethyst due to complex twinning, see pictures and information from Jack Lowell and others


European Mineral Collector Central

 

Very nice people with excellent links to geology information and they offer classified ads for minerals from dealers around the world.


Coins and History of Asia

 

excellent site on ancient coins especially in Asia


Mineral Compositions and Information

 

Very good site with information and compositions on each mineral, easy to use.


Rock type classification for geologists

 

Excellent site for mining and geology, a classification for rock types helps you identify that rock you found and don’t know what it is


Lapidary Journal

 

The number one magazine for the lapidary world, with articles and projects for the gemcutting and metalsmithing.. also publishes Colored Stone magazine for the wholesale trade


Gemological Institute Of America

 

The Gemological Institute of America, GIA, is the world's foremost authority in gemology, diamond grading, jewelry education, and gemology research, an independent nonprofit organization,


Gems & Gemology Index

 

Gems and Gemology The Quarterly Journal of the GIA, with excellent research articles and news on the latest worldwide gem discoveries. The source for the latest information for gem buyers and dealers. No advertising. Subscriptions available through the GIA.


SEP Tools of Chicago

 

SEP Jewelry Tools of Chicago, Inc. Description: Jewelry tools and supplies including scales, cleaning supplies, engraving, polishing and rolling mills. Good company with quality equipment and tools for metal working.


Portal a Geologo (Brazil)

 

Door to Geology and Mining (International Mining Projects and News) mostly in Portuguese but some are in english. Very good on research of current mining internationally


Inland Lapidary

 

Makers of the most efficient machine for basic lapidary work, we recommend it for those who want to do basic cutting and polishing of gems and minerals.


Mineraological Record

 

The best publication for mineral collecting in the world. Great articles with scientific as well as general information on famous mines, mineral collections, and special issues on countries and their most famous minerals for collections. The best there is if you like minerals with or without being a PhD in mineraology. Packed with color photos of the highest quality. Subscriptions available.


Key's Mineral Collection

 

One of the best mineral specimen dealers in Japan

 

Colorado Gem & Mineral Company © 2017